Railroad-tie



W. F. WALKER.

RAILROAD TIE.

APPLICATION man APR. 14. |920.'

1,356,417. Patented 0et.19,1920.

2 SHEElS-SHEET l.

thro/Lump W. F. WALKER.

RAILROAD TIE.

APPLICATION FILED APR.14, I920l Patented Oct. 19, 1920.

z SHEETS-SHEET 2.

attofmup UNI-'TED STATES WILLIS F. WALKER, OE SIESHOLTZVILLE, PENNSYLVANIA.

RAILROAD-TIE.

Specification of Letters Patent. Patgnted Oct. 19, 1920.

Application led April 14, 1920. Serial No. 373,893.

T0 all whom it may concern.'

' Be it known that I, WILLIS F. WALKER, a citizen of the United States, residing at Siesholtzville, in the county of Berks and State of Pennsylvania, have invented a new and useful Railroad-Tie, of which the followingis a specification.

It is the object of this invention to provide novel means for expanding a tie, so that the tie may contract upon and hold, a mass of concrete which is located within the tie.

The invention aims, further, to provide a novel process for making a tie in such a way that the longitudinal members of the tie will grip the concrete inthe tie.

In the drawings Figure 1 shows in top plan, a tie constructed in accordance with the invention, parts being broken away; Fig. 2 is a side elevation of the tie; Fig. 3 is an end elevation of the framework of the tie; Fig. 4 is a top plan of the tie, the expanding device being in place therein and parts being broken away; Fig. 5 is a side elevation, one side member of the tie being removed in order that the expanding device may be shown clearly; Fig. 6 is a cross section on the line 6 6 of Fig. 4.

The tie is made of metal and comprises side members 1, which may be I-beams, the same being connected at their ends by U- shaped braces 2, and being connected intermediate their ends by inverted U-shaped braces 8. At each end of the tie are located pairs of longitudinal anchors 4 in the form of strips, the same being held by rivets 14 to the webs of the side members l. Opposite ends of the anchors of each pair are inwardly inclined as shown at 5, to enhance the hold of the anchors on the concrete hereinafter alluded to. Openings 6 are fashioned in the webs of the side members 1 and in the anchors 4, these openings being adapted to receive means (not shown) for holding a rail on the tie. 'Masses 7 of concrete are located at the ends of the tie, between the members 1, a mass 8 of concrete being located in the central portion of the tie, there being cavities 9 between the masses 7 and 8 of concrete, the cavities being located opposite to the openings 6 and being lnecessary for the mounting of the rail-hold-V ing means in the openings.

they may be withdrawn readily from the concrete. Superposed intermediate blocks 15 are located between the side blocks 11 and are supported on the base 10. The ends of the blocks 15 are inwardly inclined, as shown at 16, so that these blocks, like the blocks 11, may be withdrawn readily from the concrete. A washer plate 18 is mounted on the upper flanges of the side members 1,

.a filler plate 19 being interposed between the plate 18 and the uppermost block 15. A notch 2O is fashioned in the edge of the blocks 15, the notch being alined vertically with a hole 22 in the base 10. Shims 21 are inserted into the notch 20 and into the hole 22, one shim bearing against the blocks 15, and the other shim bearing against one of the side blocks 11. A wedge 24 is driven between the shims 21, the shims having angular ends 23, so that the shims' cannot be carried downwardly along with the wedge. When the wedge 24 is seated, as above described, the side blocks 11 are forced apart, causing the side members 1 of the tie to spring outwardly in opposite directions to a slight extent. The masses of concrete 7 and 8, hereinbefore alluded to, are placed in plastic form in the tie and permitted to set. The wedges 24 are knocked out and the blocks 11 and 15 are removed, the blocks 15 ordinarily being held to the base 10 by a bolt 25 passing through the plates 18 and 19. The side members 1 of the tie now contract and grip the masses 7 and 8 of cement tightly. It is to be observed that the expanding devices, comprising the parts 15 and 11, serve to form the cavities 9 which are opposite to the openings 6.

I claim 1. A method of making a railroad tie, which comprises expanding the tie; placing concrete therein; and releasing the tie to In testimony that I claim the foregoing as permit the same to grip the concrete. my own, I have hereto affixed mywsignature 10 2. A method of making a railroad tie, n the presence of two Witnesses. which comprises placing an expansible de- WILLIS F. WALKER. vice 1n the tie; expanding sald device; placg i ing concrete in the tie about said device, and Witnesses:

releasing said device to permit the tie to y IVY E. SIMPSON,

grip the concrete. BENEDICT LAW'roN. 

